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Introduction to SNG and ENG Microwave by Jonathan Higgins

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Inmarsat and the use of videophones

In the last year or so, everyone has seen widespread use of the ‘Videophone’ – the latest newsgathering tool that has become the ubiquitous tool for front-line newsgathering. No discussion of current SNG techniques can overlook the videophone phenomenon.

We will look at how the videophone works in a minute, but first, we need to look at the means of transmission that the videophone use – the Inmarsat satellite telephone system. The Inmarsat system is also used to send high quality pictures – albeit not in real time – using a system called Store and Forward.

Inmarsat system

Originally designed for maritime communication, the Inmarsat system has now expanded to other market sectors, including newsgathering. ...

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